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jscore: fix JSCoreGTK version conflict w/ loaded one by user app
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@sergio-nsk @nmoinvaz
sergio-nsk authored and nmoinvaz committed Dec 24, 2024
1 parent 8b2f739 commit 7c9d8c6
Showing 1 changed file with 138 additions and 130 deletions.
268 changes: 138 additions & 130 deletions execute_jscore.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <pthread.h>

#include <dlfcn.h>
#ifndef __APPLE__
Expand Down Expand Up @@ -59,7 +60,8 @@ typedef struct g_proxy_execute_jscore_s {
void (*JSGarbageCollect)(JSContextRef ctx);
} g_proxy_execute_jscore_s;

g_proxy_execute_jscore_s g_proxy_execute_jscore;
static g_proxy_execute_jscore_s g_proxy_execute_jscore;
static pthread_once_t g_proxy_execute_jscore_init_flag = PTHREAD_ONCE_INIT;

typedef struct proxy_execute_jscore_s {
// Execute error
Expand Down Expand Up @@ -139,6 +141,136 @@ static void js_print_exception(JSContextRef ctx, JSValueRef exception) {
}
}

void proxy_execute_jscore_delayed_init(void) {
#ifdef __APPLE__
g_proxy_execute_jscore.module = dlopen(
"/System/Library/Frameworks/JavaScriptCore.framework/Versions/Current/JavaScriptCore", RTLD_LAZY | RTLD_LOCAL);
#else
const char *library_names[] = {"libjavascriptcoregtk-4.1.so.0", "libjavascriptcoregtk-4.0.so.18",
"libjavascriptcoregtk-3.0.so.0", "libjavascriptcoregtk-1.0.so.0"};
const size_t library_names_size = sizeof(library_names) / sizeof(library_names[0]);

// Use existing JavaScriptCoreGTK if already loaded
struct link_map *map = NULL;
void *current_process = dlopen(0, RTLD_LAZY);
if (!current_process)
return;
if (dlinfo(current_process, RTLD_DI_LINKMAP, &map) == 0) {
while (map && !g_proxy_execute_jscore.module) {
for (size_t i = 0; i < library_names_size; i++) {
if (strstr(map->l_name, library_names[i])) {
g_proxy_execute_jscore.module = dlopen(map->l_name, RTLD_NOLOAD | RTLD_LAZY | RTLD_LOCAL);
break;
}
}
map = map->l_next;
}
}
dlclose(current_process);

// Load the first available version of the JavaScriptCoreGTK
for (size_t i = 0; !g_proxy_execute_jscore.module && i < library_names_size; i++) {
g_proxy_execute_jscore.module = dlopen(library_names[i], RTLD_LAZY | RTLD_LOCAL);
}
#endif

if (!g_proxy_execute_jscore.module)
return;

// Class functions
g_proxy_execute_jscore.JSClassCreate = dlsym(g_proxy_execute_jscore.module, "JSClassCreate");
if (!g_proxy_execute_jscore.JSClassCreate)
goto jscore_init_error;
// Object functions
g_proxy_execute_jscore.JSObjectMake = dlsym(g_proxy_execute_jscore.module, "JSObjectMake");
if (!g_proxy_execute_jscore.JSObjectMake)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectMakeFunctionWithCallback =
dlsym(g_proxy_execute_jscore.module, "JSObjectMakeFunctionWithCallback");
if (!g_proxy_execute_jscore.JSObjectMakeFunctionWithCallback)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectGetProperty = dlsym(g_proxy_execute_jscore.module, "JSObjectGetProperty");
if (!g_proxy_execute_jscore.JSObjectGetProperty)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectSetProperty = dlsym(g_proxy_execute_jscore.module, "JSObjectSetProperty");
if (!g_proxy_execute_jscore.JSObjectSetProperty)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectGetPrivate = dlsym(g_proxy_execute_jscore.module, "JSObjectGetPrivate");
if (!g_proxy_execute_jscore.JSObjectGetPrivate)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectSetPrivate = dlsym(g_proxy_execute_jscore.module, "JSObjectSetPrivate");
if (!g_proxy_execute_jscore.JSObjectSetPrivate)
goto jscore_init_error;
// Context functions
g_proxy_execute_jscore.JSContextGetGlobalObject = dlsym(g_proxy_execute_jscore.module, "JSContextGetGlobalObject");
if (!g_proxy_execute_jscore.JSContextGetGlobalObject)
goto jscore_init_error;
// Value functions
g_proxy_execute_jscore.JSValueIsString = dlsym(g_proxy_execute_jscore.module, "JSValueIsString");
if (!g_proxy_execute_jscore.JSValueIsString)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueIsNumber = dlsym(g_proxy_execute_jscore.module, "JSValueIsNumber");
if (!g_proxy_execute_jscore.JSValueIsNumber)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueToObject = dlsym(g_proxy_execute_jscore.module, "JSValueToObject");
if (!g_proxy_execute_jscore.JSValueToObject)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueToStringCopy = dlsym(g_proxy_execute_jscore.module, "JSValueToStringCopy");
if (!g_proxy_execute_jscore.JSValueToStringCopy)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueToNumber = dlsym(g_proxy_execute_jscore.module, "JSValueToNumber");
if (!g_proxy_execute_jscore.JSValueToNumber)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueMakeNull = dlsym(g_proxy_execute_jscore.module, "JSValueMakeNull");
if (!g_proxy_execute_jscore.JSValueMakeNull)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueMakeBoolean = dlsym(g_proxy_execute_jscore.module, "JSValueMakeBoolean");
if (!g_proxy_execute_jscore.JSValueMakeBoolean)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueMakeString = dlsym(g_proxy_execute_jscore.module, "JSValueMakeString");
if (!g_proxy_execute_jscore.JSValueMakeString)
goto jscore_init_error;
// String functions
g_proxy_execute_jscore.JSStringCreateWithUTF8CString =
dlsym(g_proxy_execute_jscore.module, "JSStringCreateWithUTF8CString");
if (!g_proxy_execute_jscore.JSStringCreateWithUTF8CString)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringGetUTF8CString = dlsym(g_proxy_execute_jscore.module, "JSStringGetUTF8CString");
if (!g_proxy_execute_jscore.JSStringGetUTF8CString)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize =
dlsym(g_proxy_execute_jscore.module, "JSStringGetMaximumUTF8CStringSize");
if (!g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize =
dlsym(g_proxy_execute_jscore.module, "JSStringGetMaximumUTF8CStringSize");
if (!g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringRelease = dlsym(g_proxy_execute_jscore.module, "JSStringRelease");
if (!g_proxy_execute_jscore.JSStringRelease)
goto jscore_init_error;
// Global context functions
g_proxy_execute_jscore.JSGlobalContextCreate = dlsym(g_proxy_execute_jscore.module, "JSGlobalContextCreate");
if (!g_proxy_execute_jscore.JSGlobalContextCreate)
goto jscore_init_error;
g_proxy_execute_jscore.JSGlobalContextRelease = dlsym(g_proxy_execute_jscore.module, "JSGlobalContextRelease");
if (!g_proxy_execute_jscore.JSGlobalContextRelease)
goto jscore_init_error;
// Execute functions
g_proxy_execute_jscore.JSEvaluateScript = dlsym(g_proxy_execute_jscore.module, "JSEvaluateScript");
if (!g_proxy_execute_jscore.JSEvaluateScript)
goto jscore_init_error;
// Garbage collection functions
g_proxy_execute_jscore.JSGarbageCollect = dlsym(g_proxy_execute_jscore.module, "JSGarbageCollect");
if (!g_proxy_execute_jscore.JSGarbageCollect)
goto jscore_init_error;

return;

jscore_init_error:
proxy_execute_jscore_global_cleanup();
}

static JSValueRef proxy_execute_jscore_dns_resolve(JSContextRef ctx, JSObjectRef function, JSObjectRef object,
size_t argc, const JSValueRef argv[], JSValueRef *exception) {
if (argc != 1)
Expand Down Expand Up @@ -354,6 +486,9 @@ int32_t proxy_execute_jscore_get_error(void *ctx) {
}

void *proxy_execute_jscore_create(void) {
pthread_once(&g_proxy_execute_jscore_init_flag, proxy_execute_jscore_delayed_init);
if (!g_proxy_execute_jscore.module)
return NULL;
proxy_execute_jscore_s *proxy_execute = (proxy_execute_jscore_s *)calloc(1, sizeof(proxy_execute_jscore_s));
return proxy_execute;
}
Expand All @@ -373,136 +508,9 @@ bool proxy_execute_jscore_delete(void **ctx) {
/*********************************************************************/

bool proxy_execute_jscore_global_init(void) {
if (g_proxy_execute_jscore.module)
return true;
#ifdef __APPLE__
g_proxy_execute_jscore.module = dlopen(
"/System/Library/Frameworks/JavaScriptCore.framework/Versions/Current/JavaScriptCore", RTLD_LAZY | RTLD_LOCAL);
#else
const char *library_names[] = {"libjavascriptcoregtk-4.1.so.0", "libjavascriptcoregtk-4.0.so.18",
"libjavascriptcoregtk-3.0.so.0", "libjavascriptcoregtk-1.0.so.0"};
const size_t library_names_size = sizeof(library_names) / sizeof(library_names[0]);

// Use existing JavaScriptCoreGTK if already loaded
struct link_map *map = NULL;
void *current_process = dlopen(0, RTLD_LAZY);
if (!current_process)
return false;
if (dlinfo(current_process, RTLD_DI_LINKMAP, &map) == 0) {
while (map && !g_proxy_execute_jscore.module) {
for (size_t i = 0; i < library_names_size; i++) {
if (strstr(map->l_name, library_names[i])) {
g_proxy_execute_jscore.module = dlopen(map->l_name, RTLD_NOLOAD | RTLD_LAZY | RTLD_LOCAL);
break;
}
}
map = map->l_next;
}
}
dlclose(current_process);

// Load the first available version of the JavaScriptCoreGTK
for (size_t i = 0; !g_proxy_execute_jscore.module && i < library_names_size; i++) {
g_proxy_execute_jscore.module = dlopen(library_names[i], RTLD_LAZY | RTLD_LOCAL);
}
#endif

if (!g_proxy_execute_jscore.module)
return false;

// Class functions
g_proxy_execute_jscore.JSClassCreate = dlsym(g_proxy_execute_jscore.module, "JSClassCreate");
if (!g_proxy_execute_jscore.JSClassCreate)
goto jscore_init_error;
// Object functions
g_proxy_execute_jscore.JSObjectMake = dlsym(g_proxy_execute_jscore.module, "JSObjectMake");
if (!g_proxy_execute_jscore.JSObjectMake)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectMakeFunctionWithCallback =
dlsym(g_proxy_execute_jscore.module, "JSObjectMakeFunctionWithCallback");
if (!g_proxy_execute_jscore.JSObjectMakeFunctionWithCallback)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectGetProperty = dlsym(g_proxy_execute_jscore.module, "JSObjectGetProperty");
if (!g_proxy_execute_jscore.JSObjectGetProperty)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectSetProperty = dlsym(g_proxy_execute_jscore.module, "JSObjectSetProperty");
if (!g_proxy_execute_jscore.JSObjectSetProperty)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectGetPrivate = dlsym(g_proxy_execute_jscore.module, "JSObjectGetPrivate");
if (!g_proxy_execute_jscore.JSObjectGetPrivate)
goto jscore_init_error;
g_proxy_execute_jscore.JSObjectSetPrivate = dlsym(g_proxy_execute_jscore.module, "JSObjectSetPrivate");
if (!g_proxy_execute_jscore.JSObjectSetPrivate)
goto jscore_init_error;
// Context functions
g_proxy_execute_jscore.JSContextGetGlobalObject = dlsym(g_proxy_execute_jscore.module, "JSContextGetGlobalObject");
if (!g_proxy_execute_jscore.JSContextGetGlobalObject)
goto jscore_init_error;
// Value functions
g_proxy_execute_jscore.JSValueIsString = dlsym(g_proxy_execute_jscore.module, "JSValueIsString");
if (!g_proxy_execute_jscore.JSValueIsString)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueIsNumber = dlsym(g_proxy_execute_jscore.module, "JSValueIsNumber");
if (!g_proxy_execute_jscore.JSValueIsNumber)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueToObject = dlsym(g_proxy_execute_jscore.module, "JSValueToObject");
if (!g_proxy_execute_jscore.JSValueToObject)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueToStringCopy = dlsym(g_proxy_execute_jscore.module, "JSValueToStringCopy");
if (!g_proxy_execute_jscore.JSValueToStringCopy)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueToNumber = dlsym(g_proxy_execute_jscore.module, "JSValueToNumber");
if (!g_proxy_execute_jscore.JSValueToNumber)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueMakeNull = dlsym(g_proxy_execute_jscore.module, "JSValueMakeNull");
if (!g_proxy_execute_jscore.JSValueMakeNull)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueMakeBoolean = dlsym(g_proxy_execute_jscore.module, "JSValueMakeBoolean");
if (!g_proxy_execute_jscore.JSValueMakeBoolean)
goto jscore_init_error;
g_proxy_execute_jscore.JSValueMakeString = dlsym(g_proxy_execute_jscore.module, "JSValueMakeString");
if (!g_proxy_execute_jscore.JSValueMakeString)
goto jscore_init_error;
// String functions
g_proxy_execute_jscore.JSStringCreateWithUTF8CString =
dlsym(g_proxy_execute_jscore.module, "JSStringCreateWithUTF8CString");
if (!g_proxy_execute_jscore.JSStringCreateWithUTF8CString)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringGetUTF8CString = dlsym(g_proxy_execute_jscore.module, "JSStringGetUTF8CString");
if (!g_proxy_execute_jscore.JSStringGetUTF8CString)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize =
dlsym(g_proxy_execute_jscore.module, "JSStringGetMaximumUTF8CStringSize");
if (!g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize =
dlsym(g_proxy_execute_jscore.module, "JSStringGetMaximumUTF8CStringSize");
if (!g_proxy_execute_jscore.JSStringGetMaximumUTF8CStringSize)
goto jscore_init_error;
g_proxy_execute_jscore.JSStringRelease = dlsym(g_proxy_execute_jscore.module, "JSStringRelease");
if (!g_proxy_execute_jscore.JSStringRelease)
goto jscore_init_error;
// Global context functions
g_proxy_execute_jscore.JSGlobalContextCreate = dlsym(g_proxy_execute_jscore.module, "JSGlobalContextCreate");
if (!g_proxy_execute_jscore.JSGlobalContextCreate)
goto jscore_init_error;
g_proxy_execute_jscore.JSGlobalContextRelease = dlsym(g_proxy_execute_jscore.module, "JSGlobalContextRelease");
if (!g_proxy_execute_jscore.JSGlobalContextRelease)
goto jscore_init_error;
// Execute functions
g_proxy_execute_jscore.JSEvaluateScript = dlsym(g_proxy_execute_jscore.module, "JSEvaluateScript");
if (!g_proxy_execute_jscore.JSEvaluateScript)
goto jscore_init_error;
// Garbage collection functions
g_proxy_execute_jscore.JSGarbageCollect = dlsym(g_proxy_execute_jscore.module, "JSGarbageCollect");
if (!g_proxy_execute_jscore.JSGarbageCollect)
goto jscore_init_error;

// JSCoreGTK will be initialized with a delay to avoid conflicts with the
// loaded JSCoreGTK in a user application after this function.
return true;

jscore_init_error:
proxy_execute_jscore_global_cleanup();
return false;
}

bool proxy_execute_jscore_global_cleanup(void) {
Expand Down

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